Created in 1992 by Steve Ditko and Will Murray, Squirrel Girl was introduced as a young, wanna-be superheroine whose ability to control squirrels is surprisingly effective. In her first appearance, she takes down Doctor Doom. Dan Slott brought the comedic character back, having her casually take down the most powerful villains of the Marvel Universe, and often serving as a light-hearted counterpoint to the angst and drama of comics today. She became the only competent member of The Great Lakes Avengers, which John Byrne had created in 1989.